How to update a jailbroken Iphone?

[KOTEHOK]

I currently have a jailbroken 3G Iphone (3.0 OS) and would like to update to the newest 3.1.2 (using Blackra1n). Is there any way I can do it without having to restore to original settings, updating, and rejailbreaking it again? Any help is greatly appreciated. Thanks in advance!

 

[Hack-My-i]

I currently have a jailbroken 3G Iphone (3.0 OS) and would like to update to the newest 3.1.2 (using Blackra1n). Is there any way I can do it without having to restore to original settings, updating, and rejailbreaking it again? Any help is greatly appreciated. Thanks in advance!

Nope...u will need to do everything all over again and also u will lose your unlock

 

[mwg3c]

I don't think you have to do everything over again. According to this tutorial (Jailbreak iPhone 3GS with Firmware 3.1 on Windows | Redmond Pie ), you can just restore from the jailbroken backup and you'll be good to go (assuming you had backed up all of your settings, etc). I have not tried this yet, but am hoping that's the case. I am looking to upgrade from a jailbroken 3GS on 3.0.1 to a jailbroken 3GS on 3.1.2.

Has anyone done this?

 

[Hack-My-i]

it doesnt hurt to try but me personally, i like to restore before i JB...then i just use my backup after the JB

 

[mwg3c]

I think you are still "Restoring," you're just restoring to the custom 3.1.2 software.